Description

1,2,4,7-Tetrachlorodibenzofuran CAS NO 83719-40-8 is a specific chlorinated dibenzofuran congener of significant interest in environmental and analytical chemistry. This compound serves as a critical reference standard and analytical tool for the detection and quantification of polychlorinated dibenzofurans (PCDFs), which are persistent environmental pollutants. It is primarily required by analytical laboratories, research institutions, and regulatory bodies involved in environmental monitoring, food safety, and toxicological studies to ensure accurate risk assessment and compliance with international regulations.

Application

• Environmental Analysis Reference Standard: Used as a certified reference material (CRM) for calibrating equipment and validating analytical methods in the detection of dioxins and furans in air, water, soil, and sediment samples.
• Food and Feed Safety Testing: Essential for quantifying PCDF contamination levels in food products, animal feed, and edible oils to comply with EU and global maximum residue limits (MRLs).
• Toxicological and Biomedical Research: Employed in studies investigating the metabolism, environmental fate, and health effects of chlorinated aromatic compounds.
• Waste and Emission Monitoring: Applied in the analysis of industrial emissions, incinerator fly ash, and chemical waste to monitor and control the release of persistent organic pollutants (POPs).
• Quality Control and Method Development: Serves as a critical component in the development, accreditation, and routine quality control of high-resolution gas chromatography/mass spectrometry (HRGC/HRMS) methods.
• Regulatory Compliance and Proficiency Testing: Used by testing laboratories to demonstrate competency and ensure compliance with standards such as EPA Method 1613 and EU regulations.

Basic Information

Product Name	1,2,4,7-Tetrachlorodibenzofuran
CAS No.	83719-40-8
Molecular Formula	C₁₂H₄Cl₄O
Molecular Weight	305.97 g/mol
Synonyms	1,2,4,7-TeCDF; Tetrachlorodibenzofuran (1,2,4,7-); NSC 89289; Dibenzofuran, 1,2,4,7-tetrachloro-; 1,2,4,7-Tetrachlorodibenzo[b,d]furan; TCDF (1,2,4,7- isomer)
EINECS	Contact for details

Quality Control

Our high-purity 1,2,4,7-Tetrachlorodibenzofuran is manufactured and handled under strict quality protocols to ensure identity, purity, and stability for critical analytical applications. Each batch is accompanied by a comprehensive Certificate of Analysis (COA) detailing results from advanced chromatographic and spectroscopic techniques. We support compliance with relevant analytical standards (e.g., EPA, ISO) and can provide materials suitable for use in accredited laboratory proficiency testing schemes.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (typically 15-25°C). For long-term stability, consider storage under inert atmosphere at lower temperatures (e.g., -20°C). Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white solid
Identification (IR)	Conforms to structure
Identification (GC/MS)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Related Substances (HPLC)	Individual impurity ≤ 1.0%
Total Related Substances	≤ 2.0%
Solubility	Soluble in common organic solvents (e.g., toluene, DMSO)

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.